If you’re looking to avoid BPA you really needs to not buy canned food. The vast majority of cans use BPA. The website Organic Grace has been collecting statements from various companies on their use of BPA. Definitely worth reading and following:
Linked from the above web page is also information about Tetra-Paks, which should also be avoided by those concerned about BPA or similar estrogen mimicking chemicals leaching into packaged food products.
Best to buy products packaged in glass whenever possible.